Display device for controlling displaying of a window and method of controlling the same

ABSTRACT

A method of controlling a display device including a touch screen is provided. The method includes displaying, on the touch screen, a plurality of windows respectively corresponding to executing applications, such that the windows do not overlap each other, displaying a plurality of boundary lines differentiating the plurality of windows, and a center button disposed at an intersection point of the plurality of boundary lines, receiving, through the touch screen, an input of a window size change command to change a size of at least one of the plurality of windows, and resizing and displaying at least one of the plurality of windows in correspondence to the window size change command.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a U.S. National Stage application under 35 U.S.C. §371 of an International application filed on Dec. 5, 2013 and assignedapplication number PCT/KR2013/011219, which claimed the benefit of aU.S. Provisional application filed on Dec. 6, 2012 in the U.S. Patentand Trademark Office and assigned Ser. No. 61/734,097, of a U.S.Provisional application filed on Dec. 14, 2012 in the U.S. Patent andTrademark Office and assigned Ser. No. 61/737,540, of a U.S. Provisionalapplication filed on Dec. 21, 2012 in the U.S. Patent and TrademarkOffice and assigned Ser. No. 61/740,887, of a Korean patent applicationfiled on Feb. 1, 2013 in the Korean Intellectual Property Office andassigned Serial number 10-2013-0012063, and of a Korean patentapplication filed on Aug. 8, 2013 in the Korean Intellectual PropertyOffice and assigned Serial number 10-2013-0094070, the entire disclosureof each of which is hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure relates to a display device and a method ofcontrolling the same. More particularly, the present disclosure relatesto a display device that controls displaying of a window in which anapplication is executed, and a method of controlling the display device.

BACKGROUND

A desktop computer has at least one display device (for example, amonitor). A mobile device (for example, a mobile phone, a smart phone,or a tablet Personal Computer (PC)) using a touch screen has one displaydevice.

A user of the desktop computer may divide a screen of the display deviceaccording to a working environment (for example, horizontally orvertically divide the screen while displaying a plurality of windows)and use the divided screens. When a web browser is executed, the usercan move in an up or down direction of the web page by using a page upbutton or a page down button arranged in a keyboard. When the user usesa mouse instead of the keyboard, the user can move in the up or downdirection of the web page by selecting a scroll bar located in a sidepart of the web page by using a cursor. Further, the user can move inthe up or down direction of the web page by selecting a top buttondisplayed as a text or an icon located in a bottom part of the web page.

The mobile device has a smaller size of the displayed screen incomparison with the desktop computer and a limitation in an input. Theuser has a difficulty in dividing and then using the mobile device.

Further, the mobile device can execute various applications such asbasic applications produced by a manufacturer of the mobile device andthen installed in the mobile device and additional applicationsdownloaded from an application selling site through the Internet. Theadditional applications may be developed by general users and registeredin the application selling site. Accordingly, anyone can freely sellapplications developed by himself/herself to users of the mobile devicethrough the application selling site. Therefore, tens of thousands tohundreds of thousands of applications are currently provided to themobile apparatuses free of charge or at a cost according to types of themobile apparatuses.

Although various applications which simulate consumers' curiosity andsatisfy consumers demands are provided to the mobile device, since themobile device is provided to have a portable size, it has a limitationin a size of a display device and a User Interface (UI) thereof.Accordingly, the users feel it is inconvenient to execute a plurality ofapplications in the mobile device.

Accordingly, a technology for displaying a plurality of windows on asingle display and a technology for easily adjusting a size of theplurality of windows are required.

The above information is presented as background information only toassist with an understanding of the present disclosure. No determinationhas been made, and no assertion is made, as to whether any of the abovemight be applicable as prior art with regard to the present disclosure.

SUMMARY

Aspects of the present disclosure are to address at least theabove-mentioned problems and/or disadvantages and to provide at leastthe advantages described below. Accordingly, an aspect of the presentdisclosure is to provide a display device that can easily adjust a sizeof a plurality of windows on a single display, and a method ofcontrolling the display device.

In accordance with an aspect of the present disclosure, a method ofcontrolling a display device including a touch screen is provided. Themethod includes displaying, on the touch screen, a plurality of windowsrespectively corresponding to executing applications, such that thewindows do not overlap each other, displaying a plurality of boundarylines differentiating the plurality of windows, and a center buttondisposed at an intersection point of the plurality of boundary lines,receiving, through the touch screen, an input of a window size changecommand to change a size of at least one of the plurality of windows,and resizing and displaying at least one of the plurality of windows incorrespondence to the window size change command.

In accordance with another aspect of the present disclosure, a displaydevice is provided. The display device includes a touch screenconfigured to display a plurality of windows respectively correspondingto executing applications, such that the windows do not overlap eachother, and to display a plurality of boundary lines differentiating theplurality of windows and a center button disposed at an intersectionpoint of the plurality of boundary lines and a controller configured toresize and control to display at least one of the plurality of windowsin correspondence to a window size change command to change a size of atleast one of the plurality of windows, when the window size changecommand is input on the touch screen.

As described above, the present disclosure provides a display device anda method of controlling the display device which can easily adjust asize of a plurality of windows on a single display. Accordingly, a usercan adjust the size of the plurality of windows simultaneously orseparately so that user convenience can be maximized.

Other aspects, advantages, and salient features of the disclosure willbecome apparent to those skilled in the art from the following detaileddescription, which, taken in conjunction with the annexed drawings,discloses various embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments of the present disclosure will be more apparent from thefollowing description taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 is a block diagram schematically illustrating a device accordingto an embodiment of the present disclosure;

FIGS. 2A, 2B, 2C, 2D, and 2E illustrate a display device according tovarious embodiments of the present disclosure;

FIGS. 3A and 3B are flowcharts illustrating a method of controlling adisplay device according to various embodiments of the presentdisclosure;

FIGS. 4A, 4B, 4C, 4D, 4E, 4F, and 4G illustrate a process of changing awindow size according to another embodiment of the present disclosure;

FIG. 5 is a flowchart illustrating a method of changing a window sizeaccording to an embodiment of the present disclosure;

FIGS. 6A, 6B, 6C, 6D, 6E, and 6F illustrate cases in which a screen isreduced according to various embodiments of the present disclosure;

FIGS. 6G, 6H, 6I, 6J, 6K, 6L, 6M, and 6N illustrate a process of movinga screen according to various embodiments of the present disclosure;

FIGS. 7A, 7B, 7C, 7D, and 7E illustrate cases in which a screen isreduced according to various embodiments of the present disclosure;

FIG. 7F is a flowchart illustrating a method of controlling a displaydevice according to an embodiment of the present disclosure;

FIGS. 7G, 7H, 7I, 7J, and 7K illustrate a process of moving a screenaccording to various embodiments of the present disclosure;

FIGS. 8A, 8B, and 8C illustrate a process of changing a window size;

FIGS. 9A, 9B, and 9C illustrate a process of reducing a window sizeaccording to another embodiment of the present disclosure;

FIGS. 10A, 10B, and 10C illustrate a process of enlarging a window sizeaccording to another embodiment of the present disclosure;

FIGS. 11A and 11B illustrate a process of displaying an applicationexecution screen depending on a change in a window size according to anembodiment of the present disclosure; and

FIG. 12 is a flowchart describing a method of controlling a displaydevice according to another embodiment of the present disclosure.

Throughout the drawings, it should be noted that like reference numbersare used to depict the same or similar elements, features, andstructures.

DETAILED DESCRIPTION

The following description with reference to the accompanying drawings isprovided to assist in a comprehensive understanding of variousembodiments of the present disclosure as defined by the claims and theirequivalents. It includes various specific details to assist in thatunderstanding but these are to be regarded as merely exemplary.Accordingly, those of ordinary skill in the art will recognize thatvarious changes and modifications of the various embodiments describedherein can be made without departing from the scope and spirit of thepresent disclosure. In addition, descriptions of well-known functionsand constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are notlimited to the bibliographical meanings, but, are merely used by theinventor to enable a clear and consistent understanding of the presentdisclosure. Accordingly, it should be apparent to those skilled in theart that the following description of various embodiments of the presentdisclosure is provided for illustration purpose only and not for thepurpose of limiting the present disclosure as defined by the appendedclaims and their equivalents.

It is to be understood that the singular forms “a,” “an,” and “the”include plural referents unless the context clearly dictates otherwise.Thus, for example, reference to “a component surface” includes referenceto one or more of such surfaces.

FIG. 1 is a block diagram schematically illustrating a device accordingto an embodiment of the present disclosure.

Referring to FIG. 1, a display device 100 may be connected to anexternal device (not shown) by using a mobile communication module 120,a sub-range communication module 130, and a connector 165. The “externaldevice” includes a different device (not shown) from the display device100, a mobile phone (not shown), a smart phone (not shown), a tabletPersonal Computer (PC) (not shown), and a server (not shown).

Referring to FIG. 1, the display device 100 includes a touch screen 190and a touch screen controller 195. Also, the display device 100 includesa controller 110, the mobile communication module 120, the sub-rangecommunication module 130, a multimedia module 140, a camera module 150,a Global Positioning System (GPS) module 155, an input/output module160, a sensor module 170, a storage unit 175, and a power supply unit180. The sub-range communication module 130 includes at least one of aWireless Local Area Network (WLAN) module 131 and a near fieldcommunication module 132, and the multimedia module 140 includes atleast one of a broadcasting communication module 141, an audio playbackmodule 142, and a video playback module 143. The camera module 150includes at least one of a first camera 151 and a second camera 152. Theinput/output module 160 includes at least one of a button 161, amicrophone 162, a speaker 163, a vibration motor 164, a connector 165,and a keypad 166.

The controller 110 may include a Central Processing Unit (CPU) 111, aRead-Only Memory (ROM) 112 for storing a control program for controllingthe display device 100, and a Random-Access Memory (RAM) 113 for storinga signal or data input from an outside of the display device 100 or usedas a storage area for an operation performed in the display device 100.The CPU 111 may include a single core, a dual core, a triple core, or aquad core. The CPU 111, the ROM 112 and the RAM 113 may be connectedwith each other through internal buses.

The controller 110 may control the mobile communication module 120, thesub-range communication module 130, the multimedia module 140, thecamera module 150, the GPS module 155, the input/output module 160, thesensor module 170, the storage unit 175, the power supply unit 180, atouch screen 190, and the touch screen controller 195.

The mobile communication module 120 connects the display device 100 withthe external device through mobile communication by using at least oneor a plurality of antennas (not shown) according to a control of thecontroller 110. The mobile communication module 120 transmits/receives awireless signal for voice phone communication, video phonecommunication, a Short Message Service (SMS), or a Multimedia Messageservice (MMS) to/from a mobile phone (not shown), a smart phone (notshown), a tablet PC, or another device (not shown) having a phone numberinput into the display device 100.

The sub-range communication module 130 may include at least one of theWLAN module 131 and the near field communication module 132.Alternatively or additionally, the sub-range communication module 130may include other sub-range communication modules, such as Bluetooth.For example, the sub-range communication module 130 may include only theWLAN module 131, only the near field communication module 132, onlyanother sub-range communication module, or any combination of the WLANmodule 131, the near field communication module 132, and the othersub-range communication module.

The WLAN module 131 may be connected to the Internet according to thecontrol of the controller 110 in a place where a wireless AP (AccessPoint) (not illustrated) is installed. The WLAN module 131 supports awireless LAN standard (IEEE802.11x) of the Institute of Electrical andElectronics Engineers (IEEE). The near field communication module 132may wirelessly perform near field communication between the displaydevice 100 and a video forming device (not shown) according to a controlof the controller 110. The near communication method may include, forexample, Bluetooth and Infrared Data Association (IrDA) communication.

The display device 100 may include at least one of the mobilecommunication module 120, the WLAN module 131, and the near fieldcommunication module 132. For example, the display device 100 mayinclude a combination of the mobile communication module 120, the WLANmodule 131, and the near field communication module 132 according to acapability of the display device 100.

The multimedia module 140 may include the broadcasting communicationmodule 141, the audio playback module 142, or the video playback module143. The broadcasting communication module 141 may receive abroadcasting signal (e.g., a Television (TV) broadcasting signal, aradio broadcasting signal or a data broadcasting signal) which istransmitted from a broadcasting station or broadcasting addedinformation (e.g., Electric Program Guide (EPG) or Electric ServiceGuide (ESG) through a broadcasting communication antenna (notillustrated) according to the control of the controller 110. The audioplayback module 142 may reproduce a stored or received digital audiofile (e.g., a file of which the file extension is mp3, wma, ogg, or wav)according to the control of the controller 110. The video playbackmodule 143 may reproduce a stored or received digital moving image file(e.g., a file of which the file extension is mpeg, mpg, mp4, avi, mov,or mkv) according to the control of the controller 110. The videoplayback module 143 may reproduce a digital audio file.

The multimedia module 140 may include the audio playback module 142 andthe video playback module 143 except for the broadcasting communicationmodule 141. Also, the audio playback module 142 or the video playbackmodule 143 of the multimedia module 140 may be included in thecontroller 110.

The camera module 150 may include at least one of the first camera 151and the second camera 152 each of which photographs a still image or amoving image according to the control of the controller 110. Inaddition, the first camera 151 or the second camera 152 may include anauxiliary light source (e.g. a flash (not illustrated)) that provides anamount of light required for photographing. The first camera 151 may bedisposed in a front surface of the display device 100, and the secondcamera 152 may be disposed in a rear surface of the display device 100.In a different way, the first camera 151 and the second camera 152 maybe disposed to be adjacent to each other (for example, an intervalbetween the first camera 151 and the second camera 152 is larger than 1cm or smaller than 8 cm), and thus a three-dimensional still image or athree-dimensional video may be photographed.

The GPS module 155 may receive a radio wave from a plurality of GPSsatellites (not shown) in Earth orbit and calculate a position of thedisplay device 100 by using Time of Arrival from the GPS satellites (notshown) to the display device 100.

The input/output module 160 may include at least one of a plurality ofbuttons 161, a microphone 162, a speaker 163, a vibration motor 164, aconnector 165, and a keypad 166.

The buttons 161 may be formed in a front surface, a side surface, or arear surface of the housing of the display device 100, and may includeat least one of a power/lock button (not shown), a volume button (notshown), a menu button, a home button, a back button, and a searchbutton.

The microphone 162 receives a voice or a sound to generate an electricalsignal according to a control of the controller 110.

The speaker 163 may output sounds corresponding to various signals (forexample, a wireless signal, a broadcasting signal, a digital audio file,a digital video file, photographing a picture or the like) of the mobilecommunication module 120, the sub-range communication module 130, themultimedia module 140, or the camera module 150 to an outside of thedisplay device 100 according to a control of the controller 110. Thespeaker 163 may output sounds (for example, a button control sound or aring back tone corresponding to phone communication) corresponding tofunctions performed by the display device 100. One or more speakers 163may be formed in a proper position or positions of the housing of thedisplay device 100.

The vibration motor 164 may convert an electronic signal to mechanicalvibration according to the control of the controller 110. For example,when the display device 100 in a vibration mode receives voice phonecommunication from another device (not shown), the vibration motor 164operates. One or more vibration motors 164 may be formed within thehousing of the display device 100. The vibration motor 164 may beoperated in response to a user's touch action that touches the touchscreen 190 and a continuous touch movement on the touch screen 190.

The connector 165 may be used as an interface for connecting the displaydevice 100 with an external device (not shown) or a power source (notshown). The connector 165 may transmit data stored in the storage unit175 of the display device 100 to the external device (not shown) througha wired cable connected to the connector 165 or receive the data fromthe external device (not shown) according to a control of the controller110. The display device 100 may receive power from a power source (notillustrated) through the wired cable connected to the connector 165 orcharge a battery (not illustrated using the power source).

The keypad 166 may receive a key input from the user to control thedisplay device 100. The keypad 166 includes a physical keypad (notshown) formed in the display device 100 or a virtual keypad (not shown)displayed on the touch screen 190. The physical keypad (not shown)formed in the display device 100 may be omitted according to acapability or a structure of the display device 100.

The sensor module 170 includes at least one sensor for detecting a stateof the display device 100. For example, the sensor module 170 mayinclude a proximity sensor for detecting whether the user is close tothe display device 100, an illumination sensor (not shown) for detectingan amount of light adjacent to the display device 100, or a motionsensor (not shown) for detecting an operation of the display device 100(for example, a rotation of the display device 100, or an accelerationor vibration applied to the display device 100). At least one sensor maydetect the state, generate a signal corresponding to the detection, andtransmit the generated signal to the controller 110. The sensor of thesensor module 170 may be added or omitted according to a capability ofthe display device 100.

The storage unit 175 may store signals or data input/output in responseto the operations of the mobile communication module 120, the sub-rangecommunication module 130, the multimedia module 140, the camera module150, the GPS module 155, the input/output module 160, the sensor module170, and the touch screen 190 according to the control of the controller110. The storage unit 175 may store a control program for controllingthe display device 100 or the controller 110 and applications.

The term “storage unit” includes a memory card (not shown) (for example,an Secure Digital (SD) card or a memory stick) mounted to the storageunit 175, the ROM 112 or the RAM 113 within the controller 110, or thedisplay device 100. The storage unit may include a non-volatile memory,a volatile memory, a Hard Disc Drive (HDD) or a Solid State Drive (SSD).

The power supply unit 180 may supply power to one battery or a pluralityof batteries (not shown) disposed in the housing of the display device100 according to a control of the controller 110. The one battery or theplurality of batteries (not shown) supply power to the display device100. Further, the power supply unit 180 may supply power input from anexternal power source (not shown) through the wired cable connected tothe connector 165 to the display device 100.

The touch screen 190 may provide a user interface corresponding tovarious services (for example, phone communication, data transmission,broadcasting, and photographing a picture) to the user. The touch screen190 may transmit an analog signal corresponding to at least one touchinput into the user interface to the touch screen controller 195. Thetouch screen 190 may receive at least one touch through a body part ofthe user (for example, fingers including a thumb) or a touchable inputmeans. Also, the touch screen 190 may receive a continuous motion of onetouch among at least one touch. The touch screen 190 may transmit ananalogue signal corresponding to the continuous movement of the touchinput thereto to the touch screen controller 195.

The touch according to the present disclosure is not limited to a touchbetween the touch screen 190 and the body part of the user or thetouchable input means, but may include a non-touch (for example, a casewhere a detectable interval between the touch screen 190 and the bodypart of the user or the touchable input means is equal to or smallerthan 1 mm). The detectable interval of the touch screen 190 may bechanged according to a capability of a structure of the display device100.

The touch screen 190 may be implemented in, for example, a resistivetype, a capacitive type, an infrared type, or an acoustic wave type.

The touch screen controller 195 converts the analog signal received fromthe touch screen 190 to a digital signal (for example, X and Ycoordinates) and transmits the digital signal to the controller 110. Thecontroller 110 may control the touch screen 190 by using the digitalsignal received from the touch screen controller 195. For example, thecontroller 110 may allow a shortcut execution icon (not shown) displayedon the touch screen 190 to be selected or executed in response to thetouch. Further, the touch screen controller 195 may be included in thecontroller 110.

FIGS. 2A to 2E illustrate a display device according to variousembodiments of the present disclosure.

It will be understood by those skilled in the art that a display device200 may be implemented in various forms such as an ordinary TV, aninternet TV, and a medical data display device, as well as the mobiledevice described above in relation to FIG. 1. Namely, any deviceprovided with a unit capable of displaying a rendered image may be usedas the display device without limitation.

FIG. 2A illustrates a display device according to an embodiment of thepresent disclosure. A touch screen of the display device is divided intofour areas, and different windows are displayed in the respective areas.A controller (not illustrated) of the display device 200 may set alayout such that a screen is divided into four equal areas. Morespecifically, the controller (not illustrated) may set first, second,third, and fourth areas. The controller (not illustrated) may set afirst boundary line 211 between the first and second areas, a secondboundary line 212 between the third and fourth areas, a third boundaryline 213 between the first and third areas, and a fourth boundary line214 between the second and fourth areas. Here, the first and secondboundary lines 211 and 212 may configure one line segment, and the thirdand fourth boundary lines 213 and 214 may configure one line segment.The controller (not illustrated) sets the first to fourth areas not tooverlap each other. For example, referring to FIG. 2A, the controller(not illustrated) sets the first area on an upper left side of thescreen, the second area on an upper right side of the screen, the thirdarea on a lower left side of the screen, and the fourth area on a lowerright side of the screen. The controller (not illustrated) sets thefirst and second boundary lines 211 and 212 to divide the screen intoleft and right areas, and sets the third and fourth boundary lines 213and 214 to divide the screen into upper and lower areas.

The controller (not illustrated) displays windows for executing anapplication in the respective areas. For example, the controller (notillustrated) displays a first window 201 for executing an application Ain the first area, a second window 202 for executing an application B inthe second area, a third window 203 for executing an application C inthe third area, and a fourth window 204 for executing an application Din the fourth area.

Meanwhile, the controller (not illustrated) displays a center button 210at a point where the first and second boundary lines 211 and 212intersect with the third and fourth boundary lines 213 and 214. Thecenter button 210 will be described below more specifically.

The window may be an area including an execution screen of a particularapplication, a title bar for the executed application, and a controlarea. Objects related to the application may be displayed on theexecution screen of the application. The objects may be formed invarious shapes such as a text, a figure, an icon, a button, a check box,a picture, a video, a web, a map and the like. When a user touches thecorresponding object, a predetermined function or event for the objectmay be performed in a corresponding application. The object may bereferred to as a view according to an operating system. The title barmay include at least one control key for controlling a display of thewindow. For example, the control key may be a window display minimizingbutton, a window display maximizing button, or a window closing button.

Meanwhile, applications are programs independently implemented by amanufacturer of the display device 200 or an application developer.Accordingly, a pre-execution of one application is not required toexecute another application. Further, although one application ends,another application can be continuously executed.

The applications are distinguished from a complex function application(or a dual application) generated by adding some functions (a memofunction and a message transmission/reception function) provided by oneapplication to functions of another application in that the applicationsare independently implemented programs. However, the complex functionapplication is a single application newly produced to have variousfunctions and thus has differences from conventional applications.Accordingly, the complex function application provides only limitedfunctions, without providing various functions like the conventionalapplications. Further, users have the burden of separately purchasingsuch a new complex function application.

Referring to FIG. 2B, a user 1 may increase a size of the fourth window204 for executing the application D. For example, the user 1 may touchthe second boundary line 212 and then may input a window size changecommand 215 to drag the second boundary line 212 leftward to a first endpoint 216. The controller (not illustrated) may determine incorrespondence to the drag gesture input on the touch screen that thewindow size change command 215 has been input. The controller (notillustrated) analyzes the input window size change command 215, andresizes and displays the windows. For example, the controller (notillustrated) may control such that the third and fourth areas aredisplayed while a horizontal length of the third area is decreased and ahorizontal length of the fourth area is increased by the input windowsize change command 215. More specifically, the controller (notillustrated) may determine, based on the fact that a start point of thedrag gesture is on the second boundary line 212, that the window sizechange command 215 to change the horizontal lengths of the third andfourth areas has been input. Further, the controller (not illustrated)may determine, based on the fact that the drag gesture is made leftward,that the window size change command 215 to decrease the horizontallength of the third area and increase the horizontal length of thefourth area has been input. In addition, the controller (notillustrated) may determine a degree of a change in the window size bythe window size change command 215, based on a location of the end point216 of the drag gesture. As described above, the controller (notillustrated) may determine, based on the input window size changecommand 215, at least one of a target window to be changed in size, achange in a horizontal or vertical length of the corresponding window,and a degree of the change. Table 1 illustrates a change in a windowsize according to a window size change command.

TABLE 1 Drag start Drag point direction Change in Window size 1^(st)Boundary Leftward Decrease in horizontal length of 1^(st) area & lineIncrease in horizontal length of 2^(nd) area Rightward Increase inhorizontal length of 1^(st) area & Decrease in horizontal length of2^(nd) area 2^(nd) Boundary Leftward Decrease in horizontal length of3^(rd) area & line Increase in horizontal length of 4^(th) areaRightward Increase in horizontal length of 3^(rd) area & Decrease inhorizontal length of 4^(th) area 3^(rd) Boundary Upward Decrease invertical length of 1^(st) area & line Increase in vertical length of3^(rd) area Downward Increase in vertical length of 1^(st) area &Decrease in vertical length of 3^(rd) area 4^(th) Boundary UpwardDecrease in vertical length of 2^(nd) area & line Increase in verticallength of 4^(th) area Downward Increase in vertical length of 2^(nd)area & Decrease in vertical length of 4^(th) area

When analyzing the window size change command, the controller (notillustrated) may change the horizontal lengths of the third and fourthwindows 203 and 204 based on the window size change command, and maydisplay the third and fourth windows 203 and 204, as illustrated in FIG.2C. More specifically, the controller (not illustrated) may reset thesecond boundary line 212 to the end point 216 of the drag gesture 215input by the user 1. The controller (not illustrated) may change thehorizontal lengths of the third and fourth windows 203 and 204 based onthe second boundary line 212, and may display the third and fourthwindows 203 and 204. Meanwhile, the controller (not illustrated)displays the third window 203 in the size-changed third area and thefourth window 204 in the size-changed fourth area. In this case, thecontroller (not illustrated) resizes and displays the third window 203,namely, an execution screen of the application C in correspondence tothe size-changed third area. The controller (not illustrated) resizesand displays the fourth window 204, namely, an execution screen of theapplication D in correspondence to the size-changed fourth area. Forexample, the controller (not illustrated) may display the executionscreen of the application C in the entire third area. In this case, thecontroller (not illustrated) may reduce and display the execution screenof the application C in the same rate as the third area. Further, thecontroller (not illustrated) may display only a portion of the executionscreen of the application C. For example, the controller (notillustrated) may display only a right side portion of the executionscreen of the application C, thereby creating an effect that theapplication C is pushed to a left side. Furthermore, the controller (notillustrated) may also display the third window 203 at a portion of thethird area, while maintaining a horizontal to vertical ratio of theexecution screen of the application C. The controller may leave theremaining area of the third area empty, in which the third window 203 isnot displayed in the remaining area. Moreover, the controller (notillustrated) may change the execution screen of the application toanother screen, and may display the other screen. The controller (notillustrated) may also change and display the execution screen of theapplication in correspondence to an area reduced or enlarged in variousways. This will be described below more specifically.

Meanwhile, the controller (not illustrated) may form a view having apredetermined thickness while the boundary line serving as a center lineof the thickness, and may control such that the view is not displayed.Since the boundary line is displayed as a line, it may be difficult todetermine whether the boundary line is touched. Accordingly, when theview having the predetermined thickness is touched, the controller (notillustrated) may determine that the boundary line is touched.

As described above, the display device 200 provides a function of makingthe user 1 change the size of the two areas simultaneously and easily.

FIGS. 2D and 2E illustrate a process of changing a window size accordingto another embodiment of the present disclosure.

Referring to FIG. 2D, a user 1 may input a window size change command231 on a touch screen. In the embodiment of FIG. 2D, the window sizechange command 231 may be an upward drag gesture from a third boundaryline 213 to a second end point 232.

The controller (not illustrated) may analyze the input window sizechange command 231, and may control such that first and third areas aredisplayed as illustrated in FIG. 2E while a vertical length of the firstarea is decreased and a vertical length of the third area is increased.The controller (not illustrated) resizes and displays first and thirdwindows 201 and 203 in correspondence to the changed window displayspaces.

Further, the controller (not illustrated) may set the third boundaryline 213 as the second end point 232 to change the size of the first andthird areas.

FIG. 3A is a flowchart illustrating a method of controlling a displaydevice according to an embodiment of the present disclosure.

The display device may set a plurality of window display spaces such as,for example, first to fourth areas of FIG. 2A to display a plurality ofwindows, in operation S301. The display device may set, for example, atleast one boundary line, and thereby may set the plurality of windowdisplay spaces.

When the plurality of window display spaces are set, the display devicemay receive an input of a window size change command to drag theboundary line, in operation S303. The display device may determine inoperation S305 whether a starting boundary line for the drag is aboundary line between left and right window display spaces or a boundaryline between upper and lower window display spaces. When the startingboundary line for the drag is the boundary line between the left andright window display spaces (S305-Y), the display device may move theboundary line between the left and right window display spaces to an endpoint of the drag, in operation S307. In addition, the display devicemay change a horizontal length of the window display spaces in operationS309, while a vertical length of the window display spaces adjacent tothe corresponding boundary line is fixed. For example, the displaydevice may decrease a horizontal length of a first window adjacent tothe corresponding boundary line, and at the same time, may increase ahorizontal length of a second window adjacent to the correspondingboundary line. When the starting boundary line for the drag is theboundary line between the upper and lower window display spaces(S305-Y), the display device may move the boundary line between theupper and lower window display spaces to the end point of the drag, inoperation S311. Further, the display device may change a vertical lengthof the window display spaces in operation S313, while a horizontallength of the window display spaces adjacent to the correspondingboundary line is fixed. For example, the display device may decrease avertical length of a first window adjacent to the corresponding boundaryline, and at the same time, may increase a vertical length of a secondwindow adjacent to the corresponding boundary line.

FIG. 3B is a flowchart illustrating a method of controlling a displaydevice according to another embodiment of the present disclosure. Sincethe operations S301 and S303 have been described above with reference toFIG. 3A, descriptions thereof will be omitted below.

The display device may move the corresponding boundary line to an endpoint of the drag, in operation S323. After moving the correspondingboundary line, the display device may change a size of window displayspaces based on the moved boundary line, in operation S325. Namely,unlike the embodiment of FIG. 3A, the display device may reset thewindow display spaces based on at least one boundary line after themovement of the boundary line. The display device displays windows inthe reset window display spaces, respectively.

FIGS. 4A to 4G illustrate a process of changing a window size accordingto another embodiment of the present disclosure.

FIG. 4A illustrates a display device according to an embodiment of thepresent disclosure. A touch screen of the display device is divided intofour areas, and different windows are displayed in the respective areas.A controller (not illustrated) of the display device 400 may set alayout such that a screen is divided into four equal areas. Morespecifically, the controller (not illustrated) may set first, second,third, and fourth areas. The controller (not illustrated) may set afirst boundary line 411 between the first and second areas, a secondboundary line 412 between the third and fourth areas, a third boundaryline 413 between the first and third areas, and a fourth boundary line414 between the second and fourth areas.

The controller (not illustrated) displays windows for executing anapplication in the respective areas. For example, the controller (notillustrated) displays a first window 401 for executing an application Ain the first area, a second window 402 for executing an application B inthe second area, a third window 403 for executing an application C inthe third area, and a fourth window 404 for executing an application Din the fourth area.

Meanwhile, the controller (not illustrated) displays a center button 410at a point where the first and second boundary lines 411 and 412intersect with the third and fourth boundary lines 413 and 414.

Referring to FIG. 4B, a user 1 may input, as a window size changecommand, a leftward drag gesture 421 from the center button 410 to afirst end point 422. Referring to FIG. 4C, the controller (notillustrated) may change a location of the center button 410 to the firstend point 422, and may display the center button 410. In addition, thecontroller (not illustrated) may reset and display the boundary lines411 to 414 based on the center button 410. For example, the controller(not illustrated) resets the first boundary line 411 from the centerbutton 410 to an upper side, the second boundary line 412 from thecenter button 410 to a lower side, the third boundary line 413 from thecenter button 410 to a left side, and the fourth boundary line 414 fromthe center button 410 to a right side. Further, the controller (notillustrated) resizes and displays the first to fourth areas 401, 402,403, and 404 based on the reset boundary lines 411 to 414. Namely, incontrast to the embodiment of FIG. 2C, a size of all the window displayareas may be changed together in the embodiment of FIG. 4B.

FIG. 4D illustrates a method of changing a window size according toanother embodiment of the present disclosure.

Referring to FIG. 4D, a user may input, as a window size change command,an upward drag gesture 435 from the center button 410 to a second endpoint 436. Referring to FIG. 4E, the controller (not illustrated) maychange a location of the center button 410 to the second end point 436,and may display the center button 410. In addition, the controller (notillustrated) may reset and display the boundary lines 411 to 414 basedon the center button 410. The controller (not illustrated) resizes anddisplays the first to fourth areas 401, 402, 403, and 404 based on thereset boundary lines 411 to 414.

FIG. 4F illustrates a method of changing a window size according toanother embodiment of the present disclosure.

Referring to FIG. 4F, a user may input, as a window size change command,an upper-left drag gesture 464 from the center button 410 to a third endpoint 465. Referring to FIG. 4G, the controller (not illustrated) maychange a location of the center button 410 to the third end point 465,and may display the center button 410. In addition, the controller (notillustrated) may reset and display the boundary lines 411 to 414 basedon the center button 410. The controller (not illustrated) resizes anddisplays the first to fourth areas based on the reset boundary lines 411to 414. Further, the controller (not illustrated) may resize and displaywindows in correspondence to a size of the reset first to fourth areas401, 402, 403, and 404.

FIG. 5 is a flowchart illustrating a method of changing a window sizeaccording to an embodiment of the present disclosure.

The display device may set a plurality of window display spaces such as,for example, first to fourth areas of FIG. 4A to display a plurality ofwindows, in operation S501. The display device may set, for example, atleast one boundary line, and thereby may set the plurality of windowdisplay spaces. Here, a center button may be formed at an intersectingpoint of the at least one boundary line.

When the plurality of window display spaces are set, the display devicemay receive an input of a window size change command to drag the centerbutton, in operation S503. The display device moves the center button toan end point of the drag, and thereafter resets boundary lines based onthe moved center button, in operation S505. The display device resets asize of the windows based on the at least one reset boundary line, andthen displays the windows, in operation S507.

FIGS. 6A to 6C illustrate a case in which a screen is reduced accordingto an embodiment of the present disclosure.

Referring to FIG. 6A, a display device 600 displays first to fourthwindows 601, 602, 603, and 604 on a touch screen. The third window 603may execute a gallery application that displays a specific image file.Referring to FIGS. 6B and 6C, a user may reduce the third window 603 bydragging a center button.

A controller (not illustrated) reduces a horizontal size of the thirdwindow 603 based on the input window size change command, and displaysthe third window 603. Referring to FIG. 6B, the controller (notillustrated) may decrease a horizontal length of the third window 603 todisplay the third window 603. The controller (not illustrated) controlssuch that only a portion of an image is displayed as the size of thethird window 603 is reduced. For example, the controller (notillustrated) controls such that a right side portion of the image is notdisplayed, thereby creating an effect that the right side portion of theimage is hidden due to the size reduction of the third window 603.Meanwhile, when the size of the third window 603 is further reduced asillustrated in FIG. 6C, the display device 600 displays only a portionof the image in correspondence to the size reduction. More specifically,the controller (not illustrated) may control the display device 600 todisplay only a portion of the image such that the image is hidden by aboundary line.

FIG. 6D illustrates a process of changing a window size according toanother embodiment of the present disclosure.

Referring to FIG. 6D, the controller (not illustrated) may change ahorizontal to vertical ratio of an image to display the image in theentire reduced third window 603.

FIGS. 6E and 6F illustrate a process of changing a window size accordingto another embodiment of the present disclosure.

Referring to FIG. 6E, a controller (not illustrated) reduces horizontaland vertical sizes of a third window 603 based on the input window sizechange command, and displays the third window 603. The controller (notillustrated) may decrease horizontal and vertical lengths of the thirdwindow 603 to display the third window 603, as illustrated in FIG. 6E.As the size of the third window 603 is reduced, the controller (notillustrated) may also reduce and display an image at the same rate asthe third window 603. That is, the reduced image may have the same scaleas the image prior to the reduction. However, when an image is reducedin size smaller than a preset threshold value, a user may havedifficulty in recognizing the image. Accordingly, when the window isreduced in size smaller than the threshold value, referring to FIG. 6F,the controller (not illustrated) may display only a portion of theimage. More specifically, the controller (not illustrated) may displayonly a portion of the image such that the image is hidden by a boundaryline.

FIGS. 6G to 6K illustrate a process of moving a screen according tovarious embodiments of the present disclosure.

Referring to FIG. 6G, a user 1 may input a screen movement command onthe third window 603. The screen movement command may be a rightwarddrag 670. However, the rightward drag is merely illustrative. When thescreen movement command is input, a controller (not illustrated) maymove and display the screen displayed on the third window 603 inresponse to the screen movement command. Referring to FIG. 6H, thecontroller (not illustrated) may display a screen moved leftwards on thethird window 603. Alternatively, as another embodiment, referring toFIG. 6I, the controller (not illustrated) may generate and display ascroll bar 671. The scroll bar 671 may be moved by a user, and a screenmay be moved and displayed in correspondence to a movement of the scrollbar 671. For example, referring to FIG. 6J, a user 1 may input a screenmovement command that is a rightward drag 672 on the scroll bar 671.Referring to FIG. 6K, the controller (not illustrated) may display thescreen moved rightward on the third window 603 in response to the inputscreen movement command. In addition, when a preset time interval passesafter the screen is moved, the controller (not illustrated) may notdisplay the scroll bar 671. Meanwhile, the scroll bar 671 displayed atan upper side of the third window and moved leftward and rightward ismerely illustrative, and the scroll bar 671 may also be displayed at aleft side or right side of the third window, and may be moved upward anddownward.

As another embodiment of the present disclosure, referring to FIG. 6L,the controller may generate and display a directional navigator 673. Ascreen may be moved and displayed in a direction input by a user throughthe directional navigator 673. For example, referring to FIG. 6M, a user1 may input a screen movement command that is a rightward touch 674 onthe directional navigator 673. Referring to FIG. 6N, the controller (notillustrated) may display a screen moved rightward on a third window 603in response to the input screen movement command. In addition, when apreset time interval passes after the screen is moved, the controller(not illustrated) may not display the directional navigator 673.Meanwhile, the directional navigator 673 displayed at a center of thethird window is merely illustrative, and the directional navigator 673may also be displayed at a left, right, upper, or lower side of thethird window.

FIGS. 7A to 7C illustrate a case in which a screen is reduced accordingto another embodiment of the present disclosure.

Referring to FIG. 7A, a display device 700 displays first to fourthwindows 701, 702, 703, and 704 on a touch screen. The third window 703may execute a gallery application that displays a specific image file.Referring to FIGS. 7B and 7C, a user may reduce the third window 703 bydragging a center button.

A controller (not illustrated) decreases a horizontal length of thethird window 703 based on the input window size change command, anddisplays the third window 703. Referring to FIG. 7B, the controller (notillustrated) may decrease the horizontal length of the third window 703to display the third window 703. The controller (not illustrated)controls such that only a portion of an image is displayed as the sizeof the third window 703 is reduced. For example, the controller (notillustrated) controls such that a left side portion of the image is notdisplayed, thereby creating an effect that the image is pushed leftwarddue to the size reduction of the third window 703. Meanwhile, when thesize of the third window 703 is further reduced as illustrated in FIG.7C, the display device 700 displays only a portion of the image incorrespondence to the size reduction. More specifically, the controller(not illustrated) may control such that the image is displayed as ifpushed out by a boundary line.

FIGS. 7D and 7E illustrate a process of changing a window size accordingto another embodiment of the present disclosure.

Referring to FIG. 7D, a controller (not illustrated) reduces horizontaland vertical sizes of a third window 703 based on the input window sizechange command, and displays the third window 703. The controller (notillustrated) may decrease horizontal and vertical lengths of the thirdwindow 703 to display the third window 703, as illustrated in FIG. 7D.As the size of the third window 703 is reduced, the controller (notillustrated) may also reduce and display an image at the same rate asthe third window 703. That is, the reduced image may have the same scaleas the image prior to the reduction. However, when an image is reducedin size smaller than a preset threshold value, a user may havedifficulty in recognizing the image. Accordingly, when the window isreduced in size smaller than the threshold value, referring to FIG. 7E,the controller (not illustrated) may display only a portion of theimage. More specifically, the controller (not illustrated) may controlsuch that the image is displayed as if pushed out by a boundary line.

FIG. 7F is a flowchart illustrating a method of controlling a displaydevice according to an embodiment of the present disclosure.

The display device may set a plurality of window display spaces such as,for example, first to fourth areas of FIG. 2A to display a plurality ofwindows, in operation S771. The display device may set, for example, atleast one boundary line, and thereby may set the plurality of windowdisplay spaces.

When the plurality of window display spaces are set, the display devicemay receive an input of a window size change command such as a gestureto drag a boundary line or a center button, in operation S773.

The display device grasps the windows to be changed in size, based onthe input window size change command. The display device may identify anattribute of an application executed in the windows to be changed insize, in operation S775. More specifically, the display device mayidentify a size change attribute of an execution screen of theapplication executed in the windows to be changed in size, andattributes of applications are illustrated in Table 2 below.

TABLE 2 Application Attribute 1^(st) Application Size & Horizontal toVertical Ratio are changeable. 2^(nd) Application Size is changeable.Horizontal to Vertical Ratio is unchangeable. 3^(rd) Application Size &Horizontal to Vertical Ratio are unchangeable: A portion of executionscreen is hidden when window size is changed. 4^(th) Application Size &Horizontal to Vertical Ratio are unchangeable: A portion of executionscreen is pushed out when window size is changed.

As illustrated above, the attribute of the application may relate to achange in at least one of a size and a horizontal to vertical ratio ofthe execution screen of the application. The display device may identifythat an execution screen of the first application is changeable in sizeand horizontal to vertical ratio. The display device may identify thatan execution screen of the second application is changeable in size andis unchangeable in horizontal to vertical ratio. The display device mayidentify that an execution screen of the third application isunchangeable in size and horizontal to vertical ratio. Meanwhile, when awindow size is changed, the third application displays only a portion ofthe application execution screen, in which case the applicationexecution screen may be displayed as illustrated in FIGS. 6A to 6C,while being hidden by a boundary line. The display device may identifythat an execution screen of the fourth application is unchangeable insize and horizontal to vertical ratio. Meanwhile, when a window size ischanged, the fourth application displays only a portion of theapplication execution screen, in which case the application executionscreen may be displayed as if pushed out as illustrated in FIGS. 7A to7C. At a time point when the respective applications are installed, thedisplay device may identify meta data of the applications, and mayidentify and store an attribute included in the meta data.

The display device generates and displays an application executionscreen in the corresponding window, based on the identified attribute ofthe applications, in operation S777, and resizes and displays the windowbased on a window size change command, in operation S779.

As described above, the display device may also diversely change anddisplay the application execution screen according to the change in thewindow size.

FIGS. 7G to 7K illustrate a process of moving a screen according tovarious embodiments of the present disclosure. Referring to FIG. 7G, auser 1 may input a screen movement command on a third window 703. Thescreen movement command may be a leftward drag 770. However, theleftward drag 770 is merely illustrative. When the screen movementcommand is input, a controller (not illustrated) may move and displaythe screen displayed on the third window 703 in response to the screenmovement command. Referring to FIG. 7H, the controller (not illustrated)may display a screen moved leftwards on the third window 703.

Alternatively, as another embodiment, referring to FIG. 7I, thecontroller (not illustrated) may generate and display a scroll bar 771.The scroll bar 771 may be moved by a user, and a screen may be moved anddisplayed in correspondence to a movement of the scroll bar 771. Forexample, referring to FIG. 7J, a user 1 may input a screen movementcommand that is a leftward drag 772 on the scroll bar 771. Referring toFIG. 7K, the controller (not illustrated) may display the screen 780moved leftward on the third window in response to the input screenmovement command. In addition, when a preset time interval passes afterthe screen is moved, the controller (not illustrated) may not displaythe scroll bar 771. Meanwhile, the scroll bar 771 displayed at an upperside of the third window and moved leftward and rightward is merelyillustrative, and the scroll bar 771 may also be displayed at a leftside or right side of the third window, and may be moved upward anddownward.

FIGS. 8A to 8C illustrate a process of changing a window size.

Referring to FIG. 8A, a display device 800 displays first to fourthwindows 801, 802, 803, and 804 on a touch screen. The third window 803may execute a gallery application that displays a specific image file.Referring to FIGS. 8B and 8C, a user may enlarge the third window 803 bydragging a center button.

Referring to FIG. 8B, a controller (not illustrated) enlarges anddisplays an application execution screen such that the applicationexecution screen may be displayed in an entire area of an enlarged thirdwindow 813.

Meanwhile, referring to FIG. 8C, if the application execution screen isenlarged in correspondence to a window size when the third window 803 isfurther enlarged, there may be a problem in resolution. Accordingly, thedisplay device may enlarge and display only the third window 803 withoutfurther enlarging the application execution screen. Namely, the displaydevice may compare the size of the application execution screen with apreset threshold value, and may control such that the applicationexecution screen is not enlarged in excess of the threshold value.

FIGS. 9A to 9C illustrate a process of reducing a window size accordingto another embodiment of the present disclosure.

Referring to FIG. 9A, a display device 900 displays first to fourthwindows 901 to 904 on a touch screen. The third window 903 may execute aclock application that displays time. Referring to FIGS. 9B and 9C, auser may reduce the third window 903 by dragging a center button.

Referring to FIG. 9B, a controller (not illustrated) reduces anddisplays an application execution screen such that the applicationexecution screen may be displayed in an entire area of a reduced thirdwindow 903.

However, when the third window 903 is reduced as illustrated in FIG. 9C,it is difficult for a user to recognize time through an analog clock.Accordingly, the controller (not illustrated) may display anotherapplication execution screen instead of the existing applicationexecution screen, when the third window 903 is reduced in size smallerthan a preset threshold value. It may be identified in the embodiment ofFIG. 9C that the execution screen of the application executed on thethird window 903 has been replaced from the analog clock to a digitalclock.

FIGS. 10A to 10C illustrate a process of enlarging a window sizeaccording to another embodiment of the present disclosure.

Referring to FIG. 10A, a display device 1000 displays first to fourthwindows 1001, 1002, 1003, and 1004 on a touch screen. The third window1003 may execute a gallery application that displays images. Referringto FIGS. 10B and 10C, a user may enlarge the third window 1003 bydragging a center button.

Referring to FIG. 10B, a controller (not illustrated) enlarges anddisplays an application execution screen such that the applicationexecution screen may be displayed in an entire area of an enlarged thirdwindow 1003.

However, when the third window 1003 is enlarged as illustrated in FIG.10C so that a size of the third window 1003 exceeds a preset thresholdvalue, the display device may display another application executionscreen instead of the existing execution screen. As noted, in theembodiment of FIG. 10C, an image screen of the gallery application hasbeen replaced with a screen that displays folders into whichapplications are grouped.

FIGS. 11A and 11B illustrate a process of displaying an applicationexecution screen depending on a change in a window size according to anembodiment of the present disclosure.

Referring to FIG. 11A, a display device 1100 may display a plurality ofwindows 1101, 1102, 1103, and 1104 such as, for example, first to fourthareas. A user may input a command to change a size of the plurality ofwindows 1101, 1102, 1103, and 1104 through a drag gesture on a centerbutton 1110 or a boundary line. Referring to FIG. 11B, depending on thechange in the window size according to the embodiment of the presentdisclosure, application execution screens may be displayed in therespective windows 1101, 1102, 1103, and 1104 the size of which ischanged through scaling by which a horizontal to vertical ratio prior tothe change is maintained.

FIG. 12 is a flowchart describing a method of controlling a displaydevice according to another embodiment of the present disclosure.

The display device may set a plurality of window display spaces such as,for example, the first to fourth areas of FIG. 2A to display a pluralityof windows, in operation S1101. The display device may set, for example,at least one boundary line, and thereby may set the plurality of windowdisplay spaces.

When the plurality of window display spaces are set, the display devicemay receive an input of a window size change command such as a draggesture on a boundary line or a center button, in operation S1103.

The display device may determine in operation S1105 whether a windowsize is smaller or larger than a threshold value. When the window sizeis not smaller or larger than the threshold value (S1105-N), the displaydevice resizes and displays the window, and at the same time, resizesand displays the application execution screen in correspondence to thewindow size, in operation S1109. When the window size is smaller orlarger than the threshold value (S1105-Y), the display device maydisplay another screen instead of the application execution screen, inoperation Si 107, and then proceeds to operation S1109.

It may be appreciated that the embodiments of the present disclosure canbe implemented in software, hardware, or a combination thereof. Any suchsoftware may be stored, for example, in a volatile or non-volatilestorage device such as a ROM, a memory such as a RAM, a memory chip, amemory device, or a memory Integrated Circuit (IC), or a recordableoptical or magnetic medium such as a Compact Disk (CD), a DigitalVersatile Disc (DVD), a magnetic disk, or a magnetic tape, regardless ofits ability to be erased or its ability to be re-recorded. Also, it willbe appreciated that the various embodiments of the present disclosuremay be implemented by a computer or a portable terminal which includes acontrol unit and a memory, in which the memory may be an example of anon-transitory storage medium that is readable by a machine that issuitable for storing one or more programs that include instructions forimplementing the various embodiments of the present disclosure.Accordingly, the present disclosure includes a program for a codeimplementing the apparatus and method described in the appended claimsof the specification and a non-transitory machine (a computer or thelike)-readable storage medium for storing the program. Moreover, such aprogram as described above can be electronically transferred through anarbitrary medium such as a communication signal transferred throughcable or wireless connection, and the present disclosure properlyincludes the things equivalent to that.

Further, the device can receive the program from a program providingapparatus connected to the device wirelessly or through a wire and storethe received program. The program supply apparatus may include a programthat includes instructions to execute the various embodiments of thepresent disclosure, a memory that stores information or the likerequired for the various embodiments of the present disclosure, acommunication unit that conducts wired or wireless communication withthe electronic apparatus, and a control unit that transmits acorresponding program to a transmission/reception apparatus in responseto the request from the electronic apparatus or automatically.

While the present disclosure has been shown and described with referenceto various embodiments thereof, it will be understood by those skilledin the art that various changes in form and details may be made thereinwithout departing from the spirit and scope of the present disclosure asdefined by the appended claims and their equivalents.

The invention claimed is:
 1. A method of controlling a display devicecomprising a touch screen, the method comprising: displaying, by aprocessor, on the touch screen, execution screens of a plurality ofapplications in a plurality of windows respectively, such that theplurality of windows do not overlap each other; displaying, by theprocessor, a plurality of boundary lines differentiating the pluralityof windows, wherein a first execution screen is displayed in a firstwindow of the plurality of windows; receiving, through the touch screen,an input of a window size change command to change a size of at leastone of the plurality of windows; resizing and displaying, by theprocessor, the at least one of the plurality of windows incorrespondence to the window size change command such that the executionscreens of the plurality of applications do not overlap each other; andbased on a size of the first window being less than a thresholdaccording to the resizing, displaying a second execution screen otherthan the first execution screen in the first window in replacement ofthe first execution screen, wherein the first and second executionscreens are execution screens of a first application, and wherein thesecond execution screen providing an alternate information of the firstexecution screen.
 2. The method as claimed in claim 1, wherein thewindow size change command comprises a drag gesture starting from one ofthe plurality of boundary lines and ending at a first point.
 3. Themethod as claimed in claim 2, wherein the resizing and displaying of theat least one of the plurality of windows comprises moving, to the firstpoint, a boundary line to which the drag gesture is input and displayingthe boundary line.
 4. The method as claimed in claim 2, wherein thedisplaying of the plurality of boundary lines comprises generating viewshaving a predetermined width while the plurality of boundary linesserves as a center line, and the receiving of the input of the windowsize change command comprises receiving an input of the drag gesturethrough the views.
 5. The method as claimed in claim 1, wherein theresizing and displaying of the at least one of the plurality of windowscomprises: identifying an attribute of an application executed in awindow to be changed in size; and displaying an application executionscreen of the window to be changed in size based on the attribute of theapplication.
 6. The method as claimed in claim 5, wherein the attributeof the application comprises at least one of whether a size of anexecution screen of the application is changed or whether a horizontalto vertical ratio is changed.
 7. The method as claimed in claim 1,wherein the resizing and displaying of the at least one of the pluralityof windows comprises determining whether the window is enlarged inexcess of a preset threshold value or is reduced in size smaller thanthe preset threshold value.
 8. The method as claimed in claim 1, whereinthe resizing and displaying of the at least one of the plurality ofwindows further comprises: determining whether the window is reduced insize greater than a preset threshold value; and replacing an executionscreen of an application executed in the window to be changed in sizewith another screen if it is determined that the window is reduced insize greater than the preset threshold value.
 9. A display devicecomprising: a touch screen configured to: display execution screens of aplurality of applications in a plurality of windows respectively, suchthat the windows do not overlap each other, and display a plurality ofboundary lines differentiating the plurality of windows, wherein a firstexecution screen is displayed in a first window of the plurality ofwindows; and at least one processor configured to: resize and control todisplay at least one of the plurality of windows in correspondence to awindow size change command to change a size of the at least one of theplurality of windows such that the execution screens of the plurality ofapplications do not overlap each other, when the window size changecommand is input on the touch screen, and based on a size of the firstwindow being less than a threshold according to the resizing, display asecond execution screen other than the first execution screen in thefirst window in replacement of the first execution screen, wherein thefirst and second execution screens are execution screens of a firstapplication, and wherein the second execution screen providing analternate information of the first execution screen.
 10. The displaydevice as claimed in claim 9, wherein the window size change commandcomprises a drag gesture starting from one of the plurality of boundarylines and ending at a first point.
 11. The display device as claimed inclaim 10, wherein the at least one processor is configured to move, tothe first point, a boundary line to which the drag gesture is input anddisplays the boundary line.
 12. The display device as claimed in claim10, wherein the at least one processor is configured to: generate viewshaving a predetermined width while the plurality of boundary linesserves as a center line, and determine that the window size changecommand has been input when the drag gesture is input through the views.13. The display device as claimed in claim 9, wherein the at least oneprocessor is configured to: identify an attribute of an applicationexecuted in a window to be changed in size, and display an applicationexecution screen of the window to be changed in size based on theattribute of the application.
 14. The display device as claimed in claim13, wherein the at least one processor is configured to identify anattribute of the application comprising at least one of whether a sizeof an execution screen of the application is changed or whether ahorizontal to vertical ratio is changed.
 15. The display device asclaimed in claim 9, wherein the at least one processor is configured todetermine whether the window is enlarged in excess of a preset thresholdvalue or is reduced in size smaller than the preset threshold value. 16.The display device as claimed in claim 9, wherein the at least oneprocessor is further configured to: determine whether the window isreduced in size greater than a preset threshold value, and replace anexecution screen of an application executed in the window to be changedin size with another screen if it is determined that the window isreduced in size greater than the preset threshold value.